/* 包含多个基于state的getter计算属性的对象 */
export default {
    totalCount(state){
        return state.cartFoods.reduce((preTotal,food)=>preTotal + food.count,0)
    },
    totalPrice(state){
        return state.cartFoods.reduce((preTotal,food)=>preTotal + food.count*food.price,0)
    },
    positiveSize(state){
        return state.ratings.reduce((preTotal,rating)=>preTotal + (rating.rateType===0?1:0),0)
    }
}